Keyboards will often give this message if a file has something wrong with it. It happens with styles too. I always get rid of files that do this to avoid further problems.
Usually when something is wrong with a style, midi file, or registration file, it won't play and that's a good indication to just delete them. There is a program called GNMidi that can attempt to repair midi files if something goes wrong but it's not full-proof. In my case, the XG midi file in question caused the unexpected error but after I rebooted the Genos I went back to that midi file and tried to play it again and it played fine. So it wasn't the midi file that was bad or corrupted it apparently was the way the Genos handled the instructions to load and play the midi file that caused the error to occur. As I stated in my previous post I was in the process of playing an XG midi file when I clicked on the midi file in question. After I rebooted the Genos I went back and tried to replicate the problem using the same sequence of events I used when the problem first occurred but to no avail. I ended up calling Yamaha tech support this morning and relayed the information to a tech rep who made a notation about the issue.
I also updated some information concerning another technical issue (running time not displaying correctly when playing an audio file that is over 1 hour and 40 minutes in length i.e. 100 minutes or longer). Apparently in that situation the Genos OS cannot 'count' beyond double digits i.e. 99. So if an audio file is triple digits in length i.e. 100 minutes or longer total running time the Genos will only display the time that is beyond 100 minutes in length. So if an audio file is 112 minutes long (an hour an 52 minutes long) the Genos will only display "12" minutes as the total running time instead of 112 minutes. I discussed the problem with a person named Avery about a week and a half ago. From what I understand one of our forum members i.e. mazeka aka Harauch?? (not sure I'm spelling his name correctly) is a very knowledgeable and skilled technical support person. I got the inside scoop from an independent keyboard dealer in Florida who apparently knows him very well. So far I haven't talked to him on the phone when I have called the corporate headquarters in Buena Park, CA., but maybe I'll get a chance to at some point. He's only been a member for a short time and doesn't seem to post very much. But hopefully he's reading all the threads regarding these various technical issues. Yamaha is in fact using Genos owners as certified beta testers. The more people who purchase the Genos provides that much more input for Yamaha software engineers to diagnose and solve. So we are important in the grand scheme of things because we might catch something the developers might otherwise miss. So we can count it as a privilege that we can potentially help Yamaha fix issues that might affect the Genos. A solid, dependable keyboard is in everybody's best interest. Quality control is vital for maintaining Yamaha's preeminence as a reputable corporation within the business community. Okay, enough philosophizing for now.
Mike